hai this is Bala and i am new to automobile engineering. Can anyone specify about type of manuals used in automobile manufacturing industries and also for automobile maintenance.

For automotive maintenance there are Chilton repair manuals and Haynes repair manuals. The best one however is the factory service manual if you can get access to one. Out of the bunch, the first two are the least expensive options and you can sometimes find the factory service manuals on eBay for a decent price.